CROATIAN POST AND ELECTRONIC COMMUNICATIONS AGENCY HAKOM

Transcription

1 CROATIAN POST AND ELECTRONIC COMMUNICATIONS AGENCY HAKOM Supervision Department October 2011.

2 Control and supervision of radio frequency spectrum The purpose of supervision is to prevent unauthorized use of radio frequency spectrum and to protect authorized users, but also represents a vital process which enables HAKOM experts dealing with planning and radio frequency harmonization to access measuring data. HAKOM performs daily control and supervision of the radio frequency spectrum These tasks are performed via established Frequency Monitoring Radiolocation System (FMRS) Each part of the system is equipped with sophisticated measuring equipment capable of registering even very low frequency signals, as well as determining the direction from which the signal is coming. Measuring at several locations enables direction finding of the signal and locating the source of electromagnetic radiation. 2

3 HAKOM responsibilities HAKOM performs measuring, testing, monitoring and elimination of interferences in the radio frequency spectrum, caused by communication or technical equipment. Interference is reported by the licensee for the use of radio frequency spectrum. In the case of general license, the interference shall be reported by the user of the interfered equipment. HAKOM performs technical inspections on meeting the conditions of the license for the use of radio frequency spectrum, issued on the basis of public tender or public auction. This technical inspection is performed by HAKOM commission, in accordance with the conditions and terms which are a constituent part of the license, upon receiving the application from the licensee. Technical inspection of radio stations is an instrument of control and supervision of using the radio frequency spectrum, and is applied only to broadcasting. HAKOM performs technical inspection ex officio upon receiving notification on putting the radio station into service. In addition to performing technical inspections of radio stations in broadcasting, HAKOM may perform technical inspection of any type of radio station if such inspection is deemed necessary or if HAKOM is performing regular control and supervision of the use of radio frequency spectrum. This means that the licensee does not submit request for technical inspection of radio station to HAKOM and that the technical inspection is not the condition for the commencement of the operation. 3

4 Supervision department Supervision deparment has 22 employees but 17 employees are responsible for solving interference problems and performing daily monitoring, control and supervision of the radio frequency spectrum and expert supervisions. MMS, RMS and measurement vehicles have monitoring and direction finding capabilities between 9 khz up to 3 GHz frequency range. HAKOM has additional instruments and antennas to measure frequencies up to 40 GHz. HAKOM employees have daily, weekly and monthly monitoring tasks plus they perform specific monitoring campaigns. Duties include: on-site inspections, RF spectrum monitoring, interference solving issues, expert supervisions. HAKOM also performs expert supervision over the implementation of the Electronic Communications Act and other regulations adopted pursuant to the Postal Act. 4

5 Frequency Monitoring Radiolocation System (FMRS) Since June the Frequency Monitoring Radiolocation System (FMRS) delivered by Rohde & Schwarz GmbH & Co KG is in operation. FMRS is a nation-wide monitoring system that includes following three types of stations: 4 Manned monitoring stations (MMS) 6 Remote monitoring stations (RMS) (+1 by the end of 2011.) 5 Mobile monitoring stations (MS)= measurement vehicles Software solution for radio monitoring and radiolocation system in operation is ARGUS SW by R&S MMS and RMS are connected via HAKOM microwave links and all MMS are conneced with Zagreb via leased lines 5

6 Locations of MMS, RMS and MS on the map of Croatia 6

7 7

8 MMS and RMS measurement equipment 8

9 Antenna system AU900A4 9

10 RMS Ozljak 10

11 MMS 11

12 RMS 12

13 Measurement vehicle MS (Mercedes Sprinter) 13

14 Mercedes Sprinter 14

15 Measurement vehicle MS (Mercedes G300) 15

16 RMS Veliki Bokolj (solar power system with 2 wind turbines) 16

17 MMS RIJEKA 17

18 Upgrade of the FMRS In April 2010 HAKOM improved version of ARGUS and monitoring equipment Upgrade from ARGUS 3.6 to ARGUS 5.4 Implementation of new ESMD receivers and ETL TV analyzers ARGUS 5.4 with ESMD receiver is a great improvement for control of the radio frequency spectrum 18

19 ARGUS ARGUS is used for spectrum monitoring tasks: Everyday control measurements in AL band Weekly measurements in BC To measure deviation of FM stations Monitoring of field strength level of licensed FM/TV transmitters Measuring, testing, monitoring and elimination of interferences Specific monitoring campaigns like measurements of interferences from neighboring countries All kind of measurements of RF spectrum 19

20 ARGUS

21 Improvements of FMRS during Three (3) new Mercedes G350 measurement vehicles (in operation until the end of the 2011) New RMS Veliki Bokolj located on island Pašman (in operation until the end of the 2011) 21

22 Thank you for your attention! Questions??? 22